Finding the Fourth Proportional to 149,711.76, 206,599.14 and 81,730.08
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Solution
The fourth proportional to 149,711.76, 206,599.14 and 81,730.08 is: 112,785.82
Step by Step Solution
- Step 1: Write the proportion equation
149,711.76 : 206,599.14 = 81,730.08 : x - Step 2: Convert to fraction form
149,711.76/206,599.14 = 81,730.08/x - Step 3: Cross multiply
149,711.76x = 206,599.14 × 81,730.08 - Step 4: Simplify right side
149,711.76x = 16,885,364,240.13 - Step 5: Solve for x
x = 16,885,364,240.13/149,711.76 - Step 6: Final answer
x = 112,785.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.